if client == nil {
			continue
		}
		wg.Add(1)
		go func(client *peerRESTClient, idx int) {
			defer wg.Done()
			info, err := client.LocalStorageInfo(ctx, metrics)
			if err != nil {
				info.Disks = getOfflineDisks(client.host.String(), globalEndpoints)
			}
			replies[idx] = info
		}(client, i)
	}
	wg.Wait()

	// Add local to this server.

      result.add(builder.maximumSize(SMALL_MAX_SIZE));
    }
    for (CacheBuilder<Object, Object> builder : allKeyValueStrengthMakers()) {
      result.add(builder.expireAfterAccess(99999, SECONDS));
    }
    for (CacheBuilder<Object, Object> builder : allKeyValueStrengthMakers()) {
      result.add(builder.expireAfterWrite(99999, SECONDS));
    }

import org.apache.maven.model.Repository;
import org.apache.maven.model.building.ModelSource;

/**
 * Resolves a POM from its coordinates. During the build process, the
 * {@link org.apache.maven.model.building.ModelBuilder} will add any relevant repositories to the model resolver. In
 * other words, the model resolver is stateful and should not be reused across multiple model building requests.
 *

And as the write operation doesn't use `async` and `await`, we define the function with normal `def`:

{* ../../docs_src/background_tasks/tutorial001_py39.py hl[6:9] *}

## Add the background task { #add-the-background-task }

Inside of your *path operation function*, pass your task function to the *background tasks* object with the method `.add_task()`:

      this.anInt = anInt;
      this.anEnum = anEnum;
    }

    @Override
    public String toString() {
      return toStringHelper(this)
          .add("aString", aString)
          .add("anInt", anInt)
          .add("anEnum", anEnum)
          .toString();
    }
  }

  /** Validates that the Comparator equivalent we document is correct. */

Notice how the callback URL used contains the URL received as a query parameter in `callback_url` (`https://www.external.org/events`) and also the invoice `id` from inside of the JSON body (`2expen51ve`).

///

### Add the callback router { #add-the-callback-router }

At this point you have the *callback path operation(s)* needed (the one(s) that the *external developer*  should implement in the *external API*) in the callback router you created above.

	if r.columnNames == nil {
		r.columnNames = make([]string, len(csvRecord))
		for i := range csvRecord {
			r.columnNames[i] = fmt.Sprintf("_%v", i+1)
		}
	}

	// If no index map, add that.
	if r.nameIndexMap == nil {
		r.nameIndexMap = make(map[string]int64)
		for i := range r.columnNames {
			r.nameIndexMap[r.columnNames[i]] = int64(i)
		}
	}
	dstRec, ok := dst.(*Record)
	if !ok {

            "${prefix}TestImplementation"(project(":internal-integ-testing"))
            "${prefix}TestFullDistributionRuntimeClasspath"(project(":distributions-full"))
            // Add the agent JAR to the test runtime classpath so the InProcessGradleExecuter can find the module and spawn daemons.
            // This doesn't apply the agent to the test process.

            ArrayList<org.apache.maven.model.building.ModelProblem> problems = new ArrayList<>();
            problemCollector.problems().map(BuildSession::convert).forEach(problems::add);
            if (problemCollector.problemsOverflow()) {
                problems.add(
                        0,
                        new DefaultModelProblem(

        this.notifyInformation.add(i);

        while (i.getNextEntryOffset() > 0) {
            bufferIndex = elemStart + i.getNextEntryOffset();
            elemStart = bufferIndex;

            i = new FileNotifyInformationImpl();
            bufferIndex += i.decode(buffer, bufferIndex, len);
            this.notifyInformation.add(i);
        }

        return bufferIndex - start;
    }